High IP3
Frequency Mixer
HJK-251H+
Level 17 (LO Power +17 dBm) 40 to 250 MHz
The Big Deal
• Low conversion loss, 7.0 dB typ.
• High IP3, 32 dBm typ.
• Excellent L-R isolation, 50 dB typ.
CASE STYLE: TTT881
Product Overview
Mini-Circuits’ HJK-251H+ is a surface mount, level 17 FET-based frequency mixer with an RF frequency range from 40 to 250
MHz, LO frequency range from 10 to 220 MHz, and IF frequency range from 10 to 90 MHz. Its double-balanced FET configuration achieves an outstanding combination of low conversion loss, low noise figure and high IP3 performance without the need
for a DC bias current, ideal for sensitive receiver applications including base stations, mobile radio, radar, and more. The mixer
comes housed in a miniature, shielded 6-lead package (0.38 x 0.5 x 0.23”), saving space in tight PCB layouts.
Key Features
Feature
Advantages
High IP3, +32 dBm
Minimizes third order intermodulation products and improves dynamic range in demanding environments
where multiple carriers may be present.
Excellent P1dB compression, +20 dBm typ.
Whereas the 1-dB compression point of a diode-based mixer is typically 4 to 6 dB lower than the LO
power level, the 1-dB compression point of HJK-251H+ FET-based mixer is +20 dBm higher than the LO
signal power. This results in excellent linearity and high dynamic range.
High isolation:
• L-R isolation, 50 dB
• L-I isolation, 45 dB
Preserves signal integrity from input to output by reducing undesirable signal responses that can degrade
system performance.
Low conversion loss, 7 dB
Low conversion loss results in higher output IP3 and better overall system dynamic range.
Small size (0.38 x 0.5 x 0.23”)
Saves PCB real estate and accommodates crowded layouts.
Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
Mini-Circuits
®
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Page 1 of 3
High IP3
Frequency Mixer
HJK-251H+
Level 17 (LO Power +17 dBm) 40 to 250 MHz
Maximum Ratings
Operating Temperature
Features
-40°C to 85°C
Storage Temperature LO Power*
+19 dBm
RF Power
+20 dBm
+RoHS Compliant
Applications
The +Suffix identifies RoHS Compliance. See our web site
for RoHS Compliance methodologies and qualifications
• base stations
• amateur radio
•aeronautical
• mobile radio
• radar
• emergency
Permanent damage may occur if any of these limits are exceeded.
* Over temperature
Pad Connections
LO2
RF1
IF3
GROUND CASE STYLE: TTT881
• high IP3, 32 dBm typ.
• excellent L-R isolation, 50 dB typ.;
L-I isolation, 45 dB typ.
-55°C to 100°C
Electrical Specifications at 25°C
4,5,6
Parameter
Outline Drawing
PCB Land Pattern
Min.
Typ.
Max.
Unit
Frequency Range, RF
40
—
250
MHz
Frequency Range, LO
10
—
220
MHz
Frequency Range, IF
10
—
90
MHz
Conversion Loss
—
7.0
8.5
dB
LO to RF Isolation
36
50
—
dB
LO to IF Isolation
32
45
—
dB
IP3
—
32
—
dBm
RF Input Power at 1 dB Compression
—
+20
—
dBm
LO Power
—
+17
+20
dBm
Typical Performance Data
Frequency
Suggested Layout,
Tolerance to be within ±.002
Outline Dimensions ( inch
mm )
A
B
.38
.50
9.65 12.70
L
.070
1.78
C
.23
5.84
D
.020
0.51
E
.075
1.91
F
G
.250 .425
6.35 10.80
M
N
.270 .540
6.86 13.72
P
.060
1.52
Q
R
.095 .445
2.41 11.30
H
.187
4.75
J
.050
1.27
S
T
.208 .415
5.28 10.54
Demo Board MCL P/N: TB-12
Suggested PCB Layout (PL-079)
K
.050
1.27
wt.
grams
0.8
RF
MHz
LO
MHz
Conversion
Loss (dB)
Isolation
L-R
Isolation
L-I
VSWR
RF Port
VSWR
LO Port
IP3
(dBm)
LO
+17dBm
LO
+17dBm
LO
+17dBm
LO
+17dBm
LO
+17dBm
LO
+17dBm
40.10
10.106.5265.1464.992.40
2.1936.56
52.10
22.106.6665.9759.832.36
2.2333.25
64.10
34.106.8163.2256.262.30
2.2734.75
79.10
49.107.0260.3252.672.30
2.3334.43
91.10
61.107.0557.8050.172.27
2.3939.59
106.10
76.106.9356.8248.332.24
2.5035.00
118.10
88.106.8256.8047.712.20
2.5933.89
130.10
100.106.7855.9347.182.18
2.7033.58
145.10
115.106.7754.7646.402.13
2.8232.73
157.10
127.106.8653.7645.292.13
2.9332.58
172.10
142.107.0052.7644.042.08
3.0433.52
184.10
154.107.0552.0543.572.05
3.1233.10
196.10
166.107.0452.0543.502.03
3.1830.97
211.10
181.106.9952.4543.721.99
3.2530.11
223.10
193.106.9552.5743.651.95
3.2829.58
238.10
208.106.9052.5343.422.01
3.3130.89
250.10
220.106.9252.0642.971.95
3.3132.31
Electrical Schematic
LO
IF
RF
Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
Mini-Circuits
®
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
REV. B
M155381
ED-14451/4
HJK-251H+
WL/CP/AM
160304
Page 2 of 3
HJK-251H+
Performance Charts
8
HJK-251H+
L-R ISOLATION
100
LO=+14 (dBm)
LO=+20 (dBm)
LO=+17(dBm)
ISOLATION (dB)
CONVERSION LOSS (dB)
HJK-251H+
CONVERSION LOSS
at IF= 70 MHz
7
6
5
LO=+14 (dBm)
LO=+20 (dBm)
90
80
70
60
50
0
50
100
150
FREQUENCY (MHz)
200
250
0
22
44
HJK-251H+
L-I ISOLATION
88 110 132 154 176 198 220
FREQUENCY (MHz)
3.0
LO=+14 (dBm)
LO=+17(dBm)
LO=+20 (dBm)
70
LO=+14 (dBm)
LO=+20 (dBm)
2.5
VSWR
ISOLATION (dB)
66
HJK-251H+
RF VSWR
80
60
50
LO=+17(dBm)
2.0
1.5
40
1.0
0
22
44
66
88 110 132 154 176 198 220
FREQUENCY (MHz)
0
50
HJK-251H+
LO VSWR
4.5
LO=+14 (dBm)
4.0
LO=+20 (dBm)
100
150
FREQUENCY (MHz)
200
250
HJK-251H+
IF VSWR
5.0
2.0
LO=+17(dBm)
LO=+14 (dBm)
LO=+17(dBm)
LO=+20 (dBm)
1.8
3.5
VSWR
VSWR
LO=+17(dBm)
3.0
2.5
1.6
2.0
1.5
1.0
0
60
22
44
66
88 110 132 154 176 198 220
FREQUENCY (MHz)
0
20
40
60
IF FREQUENCY (MHz)
80
100
HJK-251H+
IP3
at IF= 70 MHz
LO=+14 (dBm)
LO=+17(dBm)
LO=+20 (dBm)
50
IP3 (dBm)
1.4
40
30
20
0
50
100
150
FREQUENCY (MHz)
200
250
Notes
A. Performance and quality attributes and conditions not expressly stated in this specification document are intended to be excluded and do not form a part of this specification document.
B. Electrical specifications and performance data contained in this specification document are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions.
C. The parts covered by this specification document are subject to Mini-Circuits standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled
to the rights and benefits contained therein. For a full statement of the Standard Terms and the exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp
Mini-Circuits
®
www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales@minicircuits.com
Page 3 of 3